Overhead Door Corporation's security grilles provide an array of attractive solutions for a spectrum of retail, commercial and industrial applications. Our side-folding grilles boast the shortest stacking dimension of any grille available today, and feature a handsome clear anodized finish (standard) in a variety of patterns and optional colors. We also offer a line of upward-coiling grilles. Constructed of aluminum, stainless or galvanized steel -- with optional electric motor -- these grilles are designed for durability and easy operation. Our comprehensive line of security grilles affords both reliability and peace of mind.